70 lines
2.3 KiB
JavaScript
70 lines
2.3 KiB
JavaScript
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console.log("main.js started");
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// For asynchronously loading the qr code library, loadQRLib returns a promise
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// which will be resolved when the library is loaded.
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var qrLibProm;
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var loadQRLib = () => {
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if (qrLibProm) { return qrLibProm; }
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qrLibProm = new Promise((resolve, reject) => {
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console.log("loading qrcode.min.js");
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var script = document.createElement('script');
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script.src = "/assets/qrcode.min.js";
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script.async = true;
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script.onload = () => { resolve(); };
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document.querySelectorAll('head')[0].appendChild(script);
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});
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return qrLibProm;
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};
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document.addEventListener("DOMContentLoaded", () => {
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console.log("DOM loaded");
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var cryptoDisplay = document.querySelector('#crypto-display');
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var clearCryptoDisplay = () => {
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while(cryptoDisplay.firstChild) {
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cryptoDisplay.removeChild(cryptoDisplay.firstChild);
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}
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};
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console.log("setting up crypto buttons");
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document.querySelectorAll('.crypto').forEach((el) => {
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var href = el.href;
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el.href="#";
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el.onclick = () => {
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var parts = href.split(":");
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if (parts.length != 2) {
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console.error(el, "href not properly formatted");
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return;
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}
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var currency = parts[0];
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var address = parts[1];
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clearCryptoDisplay();
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var cryptoDisplayQR = document.createElement('div');
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cryptoDisplayQR.id = "crypto-display-qr";
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var cryptoDisplayAddr = document.createElement('div');
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cryptoDisplayAddr.id = "crypto-display-addr";
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cryptoDisplayAddr.innerHTML = '<span>'+currency + " address: " + address + '</span>';
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var cryptoDisplayX = document.createElement('div');
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cryptoDisplayX.id = "crypto-display-x";
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cryptoDisplayX.onclick = clearCryptoDisplay;
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cryptoDisplayX.innerHTML = '<span>X</span>';
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cryptoDisplay.appendChild(cryptoDisplayQR);
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cryptoDisplay.appendChild(cryptoDisplayAddr);
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cryptoDisplay.appendChild(cryptoDisplayX);
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loadQRLib().then(() => {
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new QRCode(cryptoDisplayQR, {
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text: currency,
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width: 512,
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height: 512,
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});
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});
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};
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});
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})
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